Product Description

Ductile iron universal joint
1) The Universal Flanged Adaptors and Couplings are designed for pipelines, As a wide tolerance system
2) It will fit most standard pipe materials and therefore dramatically reduces the number of dedicated Flanged Adaptors and couplings which need to be stocked for maintenance purposes.
3) It is suitable for steel, GRP, PVC, PE, Ductile Iron, Cast Ironand Asbestors Cement. When connecting PE pipes, It is important that pipe inserts are fitted to the PE pipes.

1) All the flanged adaptors are assembled by ” T ” bolts.
2) Bolts, Nuts and Washers are in carbon steel Grade 4.8, 8.8 with zinc plated, dacromet coating or according to customer’s request.
3) Body material is Ductile iron GGG500-7.
4) CHINAMFG bonded epoxy powder coating in blue, black or red or according to customer’srequest.
5) Gaskets material: E. P. D. M., NBR or SBR.
6) Accommodate BS, DIN, ANSI flange drillings. Specification Unit Weight Sealing Ranges(mm) inches mm kgs 2″ 50 3.6 59~732 1/2″ 65 4.50 72~853″ 80 4.83 88~1034″ 100 5.51 108~1285″ 125 7.74 132~1546″ 150 8.32 159~1827″ 175 11.30 192~2098″ 200 9.95 218~23510″ 250 14.50 271~28912″ 300 18.62 322~34014″ 350 26.00 374~39116″ 400 28.85 417~43718″ 450 33.40 480~5571″ 500 50.00 526~54624″ 600 54.10 630~650.

FAQ

1. Can I get free samples?
A: Yes, we can provide you the free samples, but you need to bear their own delivery costs.

2. Can I request to change the form of packaging and transportation?
A: Yes, We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.

3. Can I request to advance the shipment?
A: It should be depends on whether there is sufficient inventory in our warehouse.

4. Can I have my own Logo on the product?
A: Yes, you can send us your drawing and we can make your logo, but you have to bear their own the cost.

5. Can you produce the products according to my own drawings?
A: Yes, we can produce the products according to your drawings that will be most satisfy you.

6. Which price terms could accepted?
A: FOB,CIF all acceptable.

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Contribution of Flexible Flange Couplings to Noise Reduction and Smooth Operation

Flexible flange couplings play a crucial role in reducing noise and ensuring smooth operation in mechanical power transmission systems. They achieve this through the following mechanisms:

1. Vibration Damping: One of the primary functions of flexible flange couplings is to dampen vibrations that occur during operation. These couplings utilize materials with inherent damping properties, such as elastomers, to absorb and dissipate vibrations generated by rotating machinery. By reducing vibrations, flexible flange couplings help minimize noise and prevent potential resonance issues that can lead to equipment failure or increased wear.
2. Misalignment Compensation: Flexible flange couplings are designed to accommodate both angular and axial misalignments between connected shafts. When shafts are misaligned, it can result in uneven forces and vibrations that contribute to noise and mechanical stress. By allowing some degree of misalignment, these couplings prevent rigid transmission of vibrations and reduce the impact of misalignment on connected machinery, resulting in smoother operation.
3. Shock Absorption: In industrial applications where machinery encounters sudden shocks or impact loads, flexible flange couplings act as shock absorbers. The elastomeric or flexible elements of the couplings can absorb and dissipate energy from shocks, preventing it from propagating through the system. This shock absorption capability helps maintain stable and quieter operation, protecting components from damage caused by sudden loads.
4. Reduced Backlash: Backlash refers to the slight play or movement that can occur in couplings when the rotational direction changes. Flexible flange couplings often exhibit minimal backlash due to their design and materials. This characteristic results in smoother engagement between the shafts during reversals, reducing noise and preventing jerky movements that could impact equipment performance.
5. Smooth Torque Transmission: Flexible flange couplings efficiently transmit torque from one shaft to another while allowing for a certain degree of flexibility. This smooth transmission of torque prevents sudden torque spikes that could lead to noise generation and mechanical stresses.

By combining these features, flexible flange couplings contribute significantly to noise reduction and ensuring smooth and reliable operation of rotating machinery. Their ability to absorb vibrations, compensate for misalignments, and dampen shocks makes them essential components in various industrial applications, where noise reduction and smooth operation are critical for performance and safety.

Comparison of Flexible Flange Couplings with Other Coupling Types

Flexible flange couplings, elastomeric couplings, and beam couplings are all popular choices for transmitting torque and accommodating misalignment in mechanical systems. Each type has its unique features and advantages, making them suitable for various applications. Here’s a comparison of flexible flange couplings with elastomeric and beam couplings:

1. Flexible Flange Couplings:
   • Design: Flexible flange couplings consist of two flanges with flexible elements (often rubber or polyurethane) connecting them. The flexibility of the coupling allows it to accommodate angular, axial, and parallel misalignments.
   • Misalignment Compensation: Flexible flange couplings can handle moderate to high levels of misalignment, making them suitable for applications where misalignment is expected.
   • Torque Capacity: They generally have a high torque capacity, making them suitable for high-power applications.
   • Backlash: Flexible flange couplings can have minimal backlash, ensuring accurate and precise motion transfer.
   • Performance: They provide damping of vibrations, reducing resonance in the system and minimizing wear on connected components.
   • Installation: Flexible flange couplings are relatively easy to install and require minimal maintenance.
   • Applications: They are commonly used in industrial machinery, power transmission systems, and applications with moderate to high misalignment requirements.
2. Elastomeric Couplings:
   • Design: Elastomeric couplings use an elastomer (rubber) element to connect two hubs. The elastomer provides flexibility for misalignment compensation.
   • Misalignment Compensation: Elastomeric couplings can handle angular and parallel misalignments but have limited axial misalignment capabilities.
   • Torque Capacity: They have a moderate torque capacity and are suitable for applications with lower torque requirements.
   • Backlash: Elastomeric couplings can have some level of backlash, which may impact precision in certain applications.
   • Performance: They provide damping of vibrations and shock absorption, protecting connected components from damage.
   • Installation: Elastomeric couplings are easy to install and require minimal maintenance.
   • Applications: They are commonly used in pumps, compressors, and applications where dampening of vibrations is crucial.
3. Beam Couplings:
   • Design: Beam couplings consist of a single piece of material with spiral cuts that provide flexibility for misalignment compensation.
   • Misalignment Compensation: Beam couplings can handle angular misalignment but have limited capabilities for parallel misalignment.
   • Torque Capacity: They have a moderate torque capacity and are suitable for applications with moderate torque requirements.
   • Backlash: Beam couplings typically have low or zero backlash, making them ideal for applications requiring precise motion transfer.
   • Performance: They offer good torsional stiffness and high torsional strength.
   • Installation: Beam couplings are simple to install and require little maintenance.
   • Applications: They are commonly used in small motors, robotics, and applications with tight space constraints.

Ultimately, the choice between flexible flange couplings, elastomeric couplings, or beam couplings depends on the specific requirements of the application. Factors such as the amount of misalignment, torque capacity, backlash tolerance, and the level of vibration dampening needed will influence the selection process. It’s essential to carefully consider the operating conditions and performance characteristics to ensure the coupling chosen optimally meets the demands of the mechanical system.

Key Design Considerations for Flexible Flange Couplings in Power Transmission Systems

When using flexible flange couplings in power transmission systems, several critical design considerations should be taken into account to ensure optimal performance, reliability, and longevity of the coupling:

• Misalignment Tolerance: One of the primary advantages of flexible flange couplings is their ability to compensate for misalignment between shafts. It is essential to determine the expected magnitude and type of misalignment (angular, parallel, or axial) that the coupling will encounter and select a coupling with appropriate misalignment tolerance.
• Torsional Stiffness: While flexible flange couplings offer some level of compliance to dampen vibrations, excessive torsional flexibility can lead to decreased system stability. Choosing a coupling with the right balance of flexibility and stiffness is crucial for maintaining the desired torsional characteristics.
• Torque Rating: The coupling’s torque rating must match or exceed the maximum torque requirements of the application. It is essential to consider the starting torque, peak torque, and continuous torque to avoid overloading the coupling.
• Speed Rating: The coupling’s speed rating should be suitable for the operating speed of the system. High-speed applications may require couplings designed to withstand higher centrifugal forces.
• Service Environment: Consider the environmental conditions in which the coupling will operate. Factors such as temperature extremes, presence of moisture or chemicals, and exposure to corrosive agents can impact the choice of materials and coatings for the coupling.
• Space Constraints: The available space for the coupling installation may dictate the coupling’s dimensions and design. It is essential to select a compact coupling that fits within the allocated space while maintaining the required performance.
• Material Selection: The choice of material for the flexible element (elastomeric, metallic, or composite) and the flanges should be based on factors such as torque requirements, misalignment compensation, and environmental compatibility.
• Dynamic Balancing: In high-speed applications, dynamic balancing of the coupling can help minimize vibrations and improve the overall system’s reliability and service life.
• Alignment: Although flexible flange couplings can tolerate misalignment, proper initial shaft alignment is still essential to reduce wear and maximize coupling life.
• Load Distribution: Ensure that the coupling distributes the transmitted load evenly between the shafts to prevent localized stress concentration and premature failure.

Conclusion: Selecting the right flexible flange coupling for a power transmission system requires careful consideration of various design parameters. By understanding the application’s requirements and the coupling’s capabilities, engineers can ensure that the coupling will perform optimally and reliably, leading to efficient power transmission and reduced maintenance needs.

editor by CX 2024-02-22